InternetSpeedTest CLI - Lightning Fast Speed Testing ⚡

The fastest, most accurate, and privacy-focused internet speed test tool for your terminal!

🌟 Why Choose InternetSpeedTest CLI?

InternetSpeedTest.net brings you the ultimate speed testing experience directly to your command line! Unlike other speed test tools, we prioritize:

🚀 Blazing Fast Performance

Lightning speed results in seconds, not minutes
Optimized protocols for maximum accuracy
Multiple concurrent connections for real-world testing

🔒 Privacy First

Zero tracking - Your data stays private
No ads or bloatware - Pure speed testing
Open source transparency - You can verify everything

🌍 Global Network

Worldwide server coverage for accurate local testing
Smart server selection based on lowest latency
Multiple backend protocols (PHP, Go, Node.js)

🎯 Developer Friendly

JSON/CSV output for automation and scripting
Comprehensive API for integration
Cross-platform binaries for all major systems

🎬 See It In Action

✨ Features That Matter

🏓 Comprehensive Testing

Ping & Jitter measurements
Download speed testing
Upload speed testing
IP address & ISP detection

📊 Multiple Output Formats

Human-readable terminal output
JSON for APIs and automation
CSV for data analysis
Simple mode for scripts

🔧 Advanced Configuration

Custom server selection
Configurable test duration
Network interface binding
Proxy and certificate support

🛡️ Enterprise Ready

Result sharing & telemetry
Custom backend servers
Network binding options
SSL/TLS configuration

🚀 Quick Start

💾 Download Pre-built Binaries

The fastest way to get started! Download the latest release for your platform:

📥 Download Latest Release

Platform	Architecture	Download
🖥️ Windows	x64	`internetspeedtest-windows-amd64.exe`
🖥️ Windows	x86	`internetspeedtest-windows-386.exe`
🍎 macOS	Intel	`internetspeedtest-darwin-amd64`
🍎 macOS	Apple Silicon	`internetspeedtest-darwin-arm64`
🐧 Linux	x64	`internetspeedtest-linux-amd64`
🐧 Linux	ARM64	`internetspeedtest-linux-arm64`

🏃‍♂️ Quick Test

# Download and run immediately
./internetspeedtest
# Quick test with specific server
./internetspeedtest --server 31
# Simple output for automation
./internetspeedtest --simple
# JSON output for APIs
./internetspeedtest --json

📦 Installation Methods

🪟 Windows

Chocolatey:

choco install internetspeedtest

Scoop:

scoop install internetspeedtest

Manual Download:

Download internetspeedtest-windows-amd64.exe from releases
Rename to internetspeedtest.exe
Add to your PATH or run directly

🍎 macOS

Homebrew:

brew install internetspeedtest-net/tap/internetspeedtest

Manual Download:

# Download and install
curl -L -o internetspeedtest https://github.com/internetspeedtest-net/internetspeedtest-cli/releases/latest/download/internetspeedtest-darwin-amd64
chmod +x internetspeedtest
sudo mv internetspeedtest /usr/local/bin/

🐧 Linux

Arch Linux (AUR):

yay -S internetspeedtest-bin

Ubuntu/Debian:

# Download .deb package from releases
wget https://github.com/internetspeedtest-net/internetspeedtest-cli/releases/latest/download/internetspeedtest_linux_amd64.deb
sudo dpkg -i internetspeedtest_linux_amd64.deb

Manual Install:

# Download and install
curl -L -o internetspeedtest https://github.com/internetspeedtest-net/internetspeedtest-cli/releases/latest/download/internetspeedtest-linux-amd64
chmod +x internetspeedtest
sudo mv internetspeedtest /usr/local/bin/

🐳 Docker

# Run directly
docker run --rm internetspeedtest/cli
# With custom options
docker run --rm internetspeedtest/cli --simple --server 31
# Build yourself
docker build -t internetspeedtest:latest .
docker run --rm internetspeedtest:latest

🛠️ Building from Source

Prerequisites

Go 1.18+ (Download)
Git

Build Steps

# Clone the repository
git clone https://github.com/internetspeedtest-net/internetspeedtest-cli.git
cd internetspeedtest-cli
# Build for your platform
go build -o internetspeedtest .# Or use the build script for optimized binary
./build.sh
# Cross-compile for other platforms
GOOS=windows GOARCH=amd64 ./build.sh # Windows 64-bit
GOOS=darwin GOARCH=amd64 ./build.sh # macOS Intel
GOOS=linux GOARCH=arm64 ./build.sh # Linux ARM64

Built binaries will be in the out/ directory.

📖 Usage Examples

🎯 Basic Speed Test

# Quick speed test with auto server selection
internetspeedtest
# Test with a specific server (see --list for IDs)
internetspeedtest --server 31
# Test without upload (download only)
internetspeedtest --no-upload
# Test without download (upload only) 
internetspeedtest --no-download

📊 Output Formats

# Simple output (perfect for scripts)
internetspeedtest --simple
# Output: Ping: 25.43 ms Download: 95.23 Mbps Upload: 48.56 Mbps# JSON output (perfect for APIs)
internetspeedtest --json
# Output: {"server":{"name":"..."},"ping":25.43,"download":95230000,"upload":48560000}# CSV output (perfect for data analysis)
internetspeedtest --csv --csv-header
# Output: Server,Ping (ms),Download (bps),Upload (bps)# "Example Server",25.43,95230000,48560000

🔧 Advanced Configuration

# Test for 30 seconds with 5 concurrent connections
internetspeedtest --duration 30 --concurrent 5
# Use specific network interface
internetspeedtest --interface eth0
# Bind to specific source IP
internetspeedtest --source 192.168.1.100
# Use HTTPS for secure connections
internetspeedtest --secure
# Disable ICMP ping (use HTTP only)
internetspeedtest --no-icmp
# Show results in bytes instead of bits
internetspeedtest --bytes

🌐 Server Management

# List all available servers
internetspeedtest --list
# Test against multiple servers
internetspeedtest --server 31 --server 34 --server 40
# Exclude specific servers from auto-selection
internetspeedtest --exclude 12 --exclude 15
# Use custom server list
internetspeedtest --server-json https://example.com/servers.json
# Use local server configuration
internetspeedtest --local-json ./my-servers.json

📈 Telemetry & Sharing

# Enable result sharing
internetspeedtest --share
# Set telemetry level
internetspeedtest --telemetry-level full --share
# Send custom message with results
internetspeedtest --telemetry-extra "Office WiFi Test" --share
# Use custom telemetry server
internetspeedtest --telemetry-server https://myserver.com --share

🔧 Command Line Options

Core Test Options

internetspeedtest [OPTIONS]

Option	Description	Example
`--server ID`	Use specific server ID	`--server 31`
`--list`	List all available servers	`--list`
`--exclude ID`	Exclude server from selection	`--exclude 12`
`--no-upload`	Skip upload test	`--no-upload`
`--no-download`	Skip download test	`--no-download`
`--duration N`	Test duration in seconds (default: 15)	`--duration 30`
`--concurrent N`	Number of concurrent connections	`--concurrent 8`

Output Format Options

Option	Description	Output Format
`--simple`	Simple one-line output	`Ping: 25ms Download: 95Mbps Upload: 48Mbps`
`--json`	JSON formatted output	`{"ping":25,"download":95000000,...}`
`--csv`	CSV formatted output	`"Server",25.43,95000000,48000000`
`--csv-header`	Include CSV headers	Adds column headers to CSV output
`--bytes`	Show results in bytes/s instead of bits/s	Changes Mbps to MB/s

Network Configuration

Option	Description	Example
`--interface NAME`	Bind to specific network interface	`--interface eth0`
`--source IP`	Bind to specific source IP address	`--source 192.168.1.100`
`--secure`	Use HTTPS instead of HTTP	`--secure`
`--no-icmp`	Disable ICMP ping, use HTTP only	`--no-icmp`

Server Configuration

Option	Description	Example
`--server-json URL`	Use custom server list	`--server-json https://example.com/servers.json`
`--local-json FILE`	Use local server list file	`--local-json ./servers.json`

Telemetry & Sharing

Option	Description	Values
`--share`	Enable result sharing/telemetry	Enable sharing
`--telemetry-level LEVEL`	Set telemetry detail level	`disabled`, `basic`, `full`
`--telemetry-server URL`	Custom telemetry endpoint	`--telemetry-server https://api.example.com`
`--telemetry-extra TEXT`	Add custom message to results	`--telemetry-extra "Office WiFi"`

Utility Options

Option	Description
`--help, -h`	Show help message
`--version`	Show version information
`--verbose`	Enable verbose output
`--quiet`	Minimal output mode

📱 Integration Examples

Shell Scripting

#!/bin/bash# Simple speed monitoring script
SPEED=$(internetspeedtest --simple | grep -o '[0-9.]*'| tail -n1)if(( $(echo "$SPEED<50" | bc -l) ));thenecho"WARNING: Upload speed is only ${SPEED} Mbps"# Send notification or restart routerfi

Python Integration

importsubprocessimportjson# Get speed test results as JSONresult=subprocess.run(['internetspeedtest', '--json'], capture_output=True, text=True)
data=json.loads(result.stdout)
print(f"Speed Test Results:")
print(f" Server: {data['server']['name']}")
print(f" Ping: {data['ping']:.1f} ms") print(f" Download: {data['download']/1000000:.1f} Mbps")
print(f" Upload: {data['upload']/1000000:.1f} Mbps")

Monitoring & Automation

# Cron job for hourly speed tests (add to crontab)
0 **** /usr/local/bin/internetspeedtest --csv >>~/speed_log.csv
# Docker monitoring
docker run --rm internetspeedtest/cli --json | jq '.download/1000000'# Network interface testing
internetspeedtest --interface wlan0 --simple
internetspeedtest --interface eth0 --simple

🤝 Contributing

We welcome contributions from the community! Whether you're fixing bugs, adding features, or improving documentation, your help makes this project better.

🐛 Bug Reports

Check existing issues first
Provide detailed reproduction steps
Include system information (OS, Go version, network setup)
Attach relevant logs with --verbose flag

✨ Feature Requests

Describe the use case and benefit
Provide examples of how it would work
Consider backward compatibility

🔧 Development Setup

# Fork and clone your repository
git clone https://github.com/YOUR_USERNAME/internetspeedtest-cli.git
cd internetspeedtest-cli
# Install dependencies
go mod download
# Make your changes# ... edit code ...# Test your changes
go test ./...
./build.sh
# Create a pull request

📝 Code Guidelines

Follow standard Go formatting (go fmt)
Add tests for new functionality
Update documentation as needed
Maintain backward compatibility when possible

📄 License & Attribution

This project is released under the MIT License. See LICENSE for details.

🙏 Acknowledgments

This CLI tool is built upon the excellent work of the LibreSpeed project:

Original LibreSpeed Project: https://github.com/librespeed/speedtest
LibreSpeed CLI: https://github.com/librespeed/speedtest-cli

We extend our gratitude to the LibreSpeed community and contributors who created the foundation for this tool.

🌟 Special Thanks

Federico Dossena and the LibreSpeed team for the original speedtest implementation
InternetSpeedTest.net for hosting and maintaining the global server network
All contributors who have helped improve this CLI tool

🌐 Related Projects

🌐 Web Interface: InternetSpeedTest.net - Fast, privacy-focused web speed test
🐍 Python Package: internetspeedtest - Python library and CLI
📊 Blog: Blog - Integrate speed tests into your applications
🔗 LibreSpeed: Original Project - Self-hosted speed test solution

⚡ Fast • 🔒 Private • 🌍 Global • 💻 Developer-Friendly

Made with ❤️ by the InternetSpeedTest.net team

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Name		Name	Last commit message	Last commit date
defs		defs
report		report
speedtest		speedtest
.gitignore		.gitignore
.goreleaser.yml		.goreleaser.yml
LICENSE		LICENSE
README.md		README.md
build.sh		build.sh
create-release.ps1		create-release.ps1
dockerfile		dockerfile
go.mod		go.mod
go.sum		go.sum
main.go		main.go
upx.sh		upx.sh

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